GO:0014731 spectrin-associated cytoskeleton: Components, Assembly and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0014731 (spectrin-associated cytoskeleton) defines the part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin, and it is associated with the plasma membrane.
• The spectrin-associated cytoskeleton is best characterized in the mammalian heart, where it stabilizes the intercalated disc and cardiomyocyte membrane domains.
• Spectrin isoforms, including an unusual beta-spectrin, can be enriched at specialized membrane sites such as clustered acetylcholine receptors.
• The spectrin cytoskeleton is functionally important beyond metazoans: it is crucial for adherent and invasive bacterial pathogenesis.
• CAMSAP-family microtubule regulators and MARK2-dependent phosphorylation influence cytoskeletal remodeling and directional cell migration, providing context for how spectrin-associated structures integrate with broader cytoskeletal networks.
• CRISPR knockout, point-mutation, knock-in and overexpression models enable causal testing of spectrin-associated cytoskeleton genes in disease and cell-biology research.
Description
GO:0014731, spectrin-associated cytoskeleton, is a cellular component ontology term describing the part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin, and associated with the plasma membrane. This membrane-associated cytoskeletal system provides mechanical support and organizes specialized plasma membrane domains in many cell types. In the mammalian heart, the spectrin-associated cytoskeleton is a major structural element of the intercalated disc, where it contributes to cardiomyocyte coupling and membrane stability. The term is therefore central to understanding how cells link the lipid bilayer to the underlying cytoskeletal network and how this linkage is remodeled in physiology and disease. Beyond the heart, spectrin-associated cytoskeletal components have been detected at clustered acetylcholine receptors, indicating roles in receptor clustering and synaptic membrane specialization. The spectrin cytoskeleton is also functionally important in host-pathogen interactions, as it is crucial for adherent and invasive bacterial pathogenesis. More broadly, cytoskeletal remodeling involving CAMSAP-family proteins and MARK2-dependent phosphorylation regulates microtubule dynamics and directional cell migration, illustrating how spectrin-associated structures cooperate with other cytoskeletal systems. Researchers study GO:0014731 to define the molecular composition of membrane-associated cytoskeletal scaffolds, to test how mutations in spectrin, protein 4.1 or ankyrin alter cell mechanics and signaling, and to identify therapeutic vulnerabilities in cancer, cardiac disease and infection.
spectrin-associated cytoskeleton At A Glance
| GO ID | GO:0014731 |
|---|---|
| GO term | spectrin-associated cytoskeleton |
| Ontology | cellular_component |
| Synonym | none |
| Definition | The part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin; associated with the plasma membrane. |
| Major function | Membrane-associated cytoskeletal scaffold that supports plasma membrane domains and specialized junctions. |
| Representative tissue context | Mammalian heart intercalated disc and other specialized membrane domains. |
| Related cytoskeletal systems | Microtubule regulators such as CAMSAP-family proteins and MARK2-dependent phosphorylation. |
| Pathogen relevance | Crucial for adherent and invasive bacterial pathogenesis. |
What Is GO:0014731?
In our own words, GO:0014731 (spectrin-associated cytoskeleton) is the plasma-membrane-associated portion of the cytoskeleton that is built from spectrin, protein 4.1 and ankyrin. It is not the entire cytoskeleton; rather, it is a defined subcompartment in which spectrin-based scaffolds, protein 4.1 adaptors and ankyrin linkers cooperate to connect the membrane to the cytoskeletal network. This definition is based on the QuickGO entry for GO:0014731, which states that the spectrin-associated cytoskeleton is composed of spectrin, protein 4.1 and ankyrin and is associated with the plasma membrane.
Why Is spectrin-associated cytoskeleton Important in Cell Biology?
The spectrin-associated cytoskeleton is important because it provides the structural link between the plasma membrane and the cytoskeleton, a function required for membrane stability, receptor clustering and specialized cell-cell junctions. In the heart, this system is a core component of the intercalated disc, and its organization is essential for normal cardiomyocyte architecture and function. Because spectrin-associated cytoskeletal elements can be co-opted during infection, the term is also relevant to host-pathogen interactions and bacterial pathogenesis. In addition, cytoskeletal remodeling pathways involving CAMSAP proteins and MARK2-dependent phosphorylation intersect with spectrin-associated structures during cell migration and microtubule destabilization, linking GO:0014731 to cancer cell biology and drug resistance.
• Defines a membrane-associated cytoskeletal subcompartment built from spectrin, protein 4.1 and ankyrin.
• Provides mechanical support and organization for specialized plasma membrane domains.
• Is a major structural element of the cardiac intercalated disc.
• Contributes to clustering of membrane receptors such as acetylcholine receptors.
• Is functionally important for adherent and invasive bacterial pathogenesis.
• Intersects with microtubule-regulating pathways such as CAMSAP-family proteins and MARK2.
• Is relevant to cancer cell cytoskeletal remodeling and drug resistance mechanisms.
• Can be studied with CRISPR knockout, point-mutation, knock-in and overexpression models.
• Provides a framework for understanding membrane-cytoskeleton coupling in multiple tissues.
• Offers candidate targets for cardiac, infectious and oncologic research.
Core Biology of GO:0014731 spectrin-associated cytoskeleton
Membrane Recruitment and Scaffold Assembly
In simple terms: In simple terms, spectrin, protein 4.1 and ankyrin come together at the plasma membrane to form a supporting scaffold.
The spectrin-associated cytoskeleton is defined as the part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin and associated with the plasma membrane. Assembly of this scaffold involves membrane recruitment of these components and their organization into a membrane-associated network. In the mammalian heart, this system is a major structural element of the intercalated disc, where it contributes to membrane domain organization. The presence of an unusual beta-spectrin at clustered acetylcholine receptors further indicates that spectrin-associated scaffolds can be targeted to specialized membrane sites.
Structural Organization at Specialized Junctions
In simple terms: In simple terms, the spectrin-associated cytoskeleton helps build and stabilize specialized cell-cell junctions.
The intercalated disc of the heart is a specialized junctional structure in which the spectrin-associated cytoskeleton is a major structural element. This localization supports the idea that GO:0014731 is not a generic cytoskeletal compartment but is enriched at membrane domains requiring mechanical and organizational support. The detection of an unusual beta-spectrin at clustered acetylcholine receptors suggests that similar spectrin-associated scaffolds operate at other specialized membrane sites.
Integration with Microtubule and Migration Machinery
In simple terms: In simple terms, the spectrin-associated cytoskeleton does not work alone; it cooperates with microtubule-regulating systems.
Cytoskeletal remodeling via CAMSAP3 downregulation drives resistance to osimertinib in NSCLC cells, showing that microtubule-associated cytoskeletal remodeling is functionally linked to cancer drug resistance. MARK2 regulates Golgi apparatus reorientation by phosphorylation of CAMSAP2 in directional cell migration, indicating that phosphorylation-dependent cytoskeletal control is important for migration. TRIM10beta upregulation promotes microtubule destabilization and triggers proteotoxic stress, further linking cytoskeletal regulatory proteins to stress responses. Bi-allelic mutations of CAMSAP1 result in teratozoospermia with sperm head and flagella defects in humans, demonstrating that CAMSAP-family cytoskeletal regulators are required for normal human development. Together, these findings provide context for how spectrin-associated cytoskeletal structures may integrate with microtubule and migration machinery.
Roles in Host-Pathogen Interactions
In simple terms: In simple terms, some bacteria exploit the spectrin cytoskeleton during infection.
The spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis. This finding broadens the functional importance of GO:0014731 beyond metazoan cell biology and indicates that spectrin-associated structures can be co-opted by pathogens during infection. Researchers studying host-pathogen interactions therefore consider the spectrin-associated cytoskeleton as a host factor that can influence bacterial adherence and invasion.
Molecular Composition and Adaptor Logic
In simple terms: In simple terms, spectrin provides the scaffold, protein 4.1 and ankyrin provide the connections to the membrane.
The QuickGO definition of GO:0014731 specifies that the spectrin-associated cytoskeleton is composed of spectrin, protein 4.1 and ankyrin. This composition implies an adaptor logic in which spectrin forms the core scaffold while protein 4.1 and ankyrin mediate membrane association and linkage to other components. The identification of an unusual beta-spectrin at clustered acetylcholine receptors illustrates that spectrin isoforms can confer specialized localization and function. In the heart, the spectrin-associated cytoskeleton is a major structural element of the intercalated disc, consistent with a composition optimized for membrane stability and junctional organization.
Key Genes Involved in GO:0014731 spectrin-associated cytoskeleton
The following genes and proteins are directly or contextually implicated in the biology of GO:0014731 (spectrin-associated cytoskeleton), based on the verified literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| SPTAN1 | Alpha-spectrin, core scaffold component of the spectrin-associated cytoskeleton | Studied in cardiac and membrane-cytoskeleton research |
| SPTBN1 | Beta-spectrin, core scaffold component of the spectrin-associated cytoskeleton | Relevant to intercalated disc and membrane domain organization |
| SPTBN2 | Beta-spectrin isoform family member implicated in spectrin-associated cytoskeletal structures | Candidate for specialized membrane domain studies |
| EPB41 | Protein 4.1, adaptor component of the spectrin-associated cytoskeleton | Studied for membrane-cytoskeleton linkage |
| ANK1 | Ankyrin, membrane linker component of the spectrin-associated cytoskeleton | Relevant to membrane association of the spectrin scaffold |
| ANK2 | Ankyrin family member contributing to membrane-cytoskeleton organization | Candidate for cardiac and neuronal membrane domain research |
| ANK3 | Ankyrin family member contributing to membrane-cytoskeleton organization | Candidate for specialized membrane domain research |
| CAMSAP1 | Microtubule-regulating protein linked to cytoskeletal organization | Bi-allelic mutations cause teratozoospermia with sperm head and flagella defects |
| CAMSAP2 | Microtubule regulator phosphorylated by MARK2 during Golgi reorientation | Studied in directional cell migration |
| CAMSAP3 | Microtubule regulator whose downregulation drives osimertinib resistance | Studied in NSCLC drug resistance and cytoskeletal remodeling |
| MARK2 | Kinase that phosphorylates CAMSAP2 and regulates Golgi reorientation | Studied in directional cell migration |
| TRIM10beta | Protein whose upregulation promotes microtubule destabilization | Studied in proteotoxic stress and cytoskeletal destabilization |
| CHRNA1 | Acetylcholine receptor subunit at clustered receptor sites | Relevant to spectrin-associated specialization at receptor clusters |
| SPTBN1-like unusual beta-spectrin | Unusual beta-spectrin associated with clustered acetylcholine receptors | Studied in receptor clustering and membrane specialization |
| Intercalated disc spectrin complex | Major structural element of the cardiac intercalated disc | Studied in cardiac cell-cell junction biology |
| Bacterial pathogenesis factors | Host spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis | Studied in host-pathogen interaction models |
How Is spectrin-associated cytoskeleton Regulated?
Regulation of the spectrin-associated cytoskeleton is not fully captured by a single pathway in the verified literature, but several regulatory themes are supported. MARK2-dependent phosphorylation of CAMSAP2 regulates Golgi apparatus reorientation during directional cell migration, showing that kinase-dependent phosphorylation controls cytoskeletal organization. CAMSAP3 downregulation drives resistance to osimertinib in NSCLC cells through cytoskeletal remodeling, indicating that changes in microtubule-regulating protein levels can remodel cytoskeletal states. TRIM10beta upregulation promotes microtubule destabilization and triggers proteotoxic stress, linking cytoskeletal regulation to protein quality control. Bi-allelic mutations of CAMSAP1 cause teratozoospermia with sperm head and flagella defects, demonstrating that genetic lesions in cytoskeletal regulators have developmental consequences. These findings provide a regulatory context in which spectrin-associated cytoskeletal structures may be modulated by phosphorylation, protein abundance changes and genetic mutation.
spectrin-associated cytoskeleton and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| SPTAN1 | Cardiac intercalated disc organization and membrane stability | Cardiomyocyte knockout or knock-in models |
| SPTBN1 | Cardiac intercalated disc organization and membrane stability | Cardiomyocyte knockout or tagged knock-in models |
| CAMSAP3 | Osimertinib resistance in NSCLC via cytoskeletal remodeling | NSCLC cell line knockout or overexpression models |
| CAMSAP1 | Teratozoospermia with sperm head and flagella defects | Knockout or point-mutation models in relevant cell systems |
| CAMSAP2 | Directional cell migration and Golgi reorientation | Knockout or phospho-mutant knock-in models |
Cardiac Disease and the Intercalated Disc
The spectrin-associated cytoskeleton is a major structural element of the mammalian heart intercalated disc, and its organization is central to cardiomyocyte membrane stability and junctional integrity. Because the intercalated disc is a specialized structure that couples cardiomyocytes, disruption of spectrin-associated cytoskeletal components is expected to impact cardiac cell-cell communication and membrane organization. Research on the spectrin-associated cytoskeleton in the heart therefore provides a framework for understanding how membrane-cytoskeleton coupling contributes to cardiac physiology and disease.
Cancer Cytoskeletal Remodeling and Drug Resistance
Cytoskeletal remodeling via CAMSAP3 downregulation drives resistance to osimertinib in NSCLC cells, demonstrating that microtubule-associated cytoskeletal changes can promote therapeutic resistance. This finding links cytoskeletal regulatory pathways to cancer cell survival under targeted therapy and supports the broader concept that cytoskeletal organization influences drug response. Although the verified literature does not directly establish a causal role for spectrin-associated cytoskeleton in osimertinib resistance, the intersection of spectrin-associated structures with microtubule-regulating systems provides a rationale for investigating GO:0014731 in cancer cytoskeletal remodeling.
Infection and Bacterial Pathogenesis
The spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis, indicating that pathogens can exploit spectrin-associated structures during infection. This observation places GO:0014731 in the context of host-pathogen interactions and suggests that spectrin-associated cytoskeletal components may be host factors influencing bacterial adherence and invasion. Researchers studying infectious disease can therefore consider the spectrin-associated cytoskeleton as a potential host determinant of pathogenesis.
Reproductive and Developmental Cytoskeletal Defects
Bi-allelic mutations of CAMSAP1 result in teratozoospermia with sperm head and flagella defects in humans, showing that mutations in cytoskeletal regulators can cause reproductive developmental defects. This finding illustrates how cytoskeletal organization, including microtubule-regulating systems that cooperate with spectrin-associated structures, is required for normal gamete development. Although the verified literature does not directly link GO:0014731 to teratozoospermia, the broader cytoskeletal context supports further investigation of spectrin-associated components in reproductive biology.
From spectrin-associated cytoskeleton-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of a spectrin-associated cytoskeleton gene disrupt membrane domain organization? | CRISPR knockout in cardiomyocyte or epithelial cell lines |
| Does a specific point mutation alter spectrin-associated cytoskeletal assembly? | CRISPR point-mutation knock-in |
| Where does a spectrin-associated protein localize in live cells? | Tagged knock-in with fluorescent or epitope tag |
| Does overexpression of a cytoskeletal regulator drive drug resistance? | CRISPR overexpression in NSCLC cell lines |
| Does a cytoskeletal regulator mutation cause developmental defects? | Knockout or point-mutation models for CAMSAP1-related phenotypes |
| How does phosphorylation regulate cytoskeletal organization? | Phospho-mutant knock-in for MARK2-CAMSAP2 axis |
How to Study the spectrin-associated cytoskeleton Process
| Method | What It Measures | Typical Application |
|---|---|---|
| CRISPR knockout | Loss-of-function phenotype for a spectrin-associated gene | Testing requirement for membrane domain organization |
| CRISPR point mutation | Effect of a specific residue change | Testing functional domains in spectrin or ankyrin |
| Tagged knock-in | Protein localization and dynamics | Imaging spectrin-associated structures at membrane sites |
| Overexpression | Gain-of-function or dosage effects | Modeling cytoskeletal remodeling in cancer cells |
| Immunofluorescence imaging | Subcellular localization | Detecting spectrin-associated cytoskeleton at junctions |
| Proteomics | Protein composition and interactions | Defining spectrin-associated cytoskeletal complexes |
| Migration assays | Directional cell migration | Testing MARK2-CAMSAP2-dependent cytoskeletal function |
| Infection assays | Bacterial adherence and invasion | Testing host spectrin cytoskeleton in pathogenesis |
CRISPR-Based Genetic Perturbation
CRISPR knockout, point-mutation, knock-in and overexpression approaches allow causal testing of genes encoding spectrin, protein 4.1, ankyrin and related cytoskeletal regulators. These methods are essential for determining whether a candidate gene is required for spectrin-associated cytoskeletal assembly and function. Knockout models can reveal loss-of-function phenotypes, while point-mutation and knock-in models can test specific residues and localization tags.
Imaging and Localization Studies
Imaging approaches are used to localize spectrin-associated cytoskeletal components at the plasma membrane and specialized junctions such as the intercalated disc. Detection of an unusual beta-spectrin at clustered acetylcholine receptors illustrates how imaging can reveal specialized membrane localization. Live-cell imaging of tagged knock-in proteins can further define dynamic behavior of spectrin-associated structures.
Biochemical and Proteomic Analysis
Biochemical and proteomic methods can define the composition of spectrin-associated cytoskeletal complexes, including spectrin, protein 4.1 and ankyrin. Such approaches help identify interacting partners and post-translational modifications that regulate the spectrin-associated cytoskeleton. Proteomic analysis of cytoskeletal fractions can also reveal changes associated with drug resistance or stress responses.
Functional Assays for Migration and Pathogenesis
Functional assays for cell migration and bacterial pathogenesis can test the role of spectrin-associated cytoskeletal components in these processes. MARK2-dependent phosphorylation of CAMSAP2 regulates Golgi reorientation during directional cell migration, providing a readout for cytoskeletal function. The spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis, supporting infection-based functional assays.
How CRISPR Can Be Used to Study GO:0014731 spectrin-associated cytoskeleton
Knockout
CRISPR knockout of genes encoding spectrin, protein 4.1 or ankyrin can test whether these components are required for spectrin-associated cytoskeletal assembly and membrane domain organization. Knockout models are also useful for evaluating the role of the spectrin cytoskeleton in bacterial pathogenesis. Loss-of-function studies in cardiomyocyte or epithelial cell lines can reveal defects in intercalated disc-like structures and membrane stability.
Point Mutation
CRISPR point-mutation models allow precise testing of residues within spectrin, protein 4.1 or ankyrin that may mediate membrane association or protein-protein interactions. Such models are valuable for dissecting the adaptor logic of the spectrin-associated cytoskeleton. Point mutations can also be used to test phosphorylation-dependent regulation of cytoskeletal regulators such as CAMSAP2.
Knock-in
Knock-in of fluorescent or epitope tags into endogenous loci enables visualization and biochemical isolation of spectrin-associated cytoskeletal components. Tagged knock-in models are particularly useful for tracking an unusual beta-spectrin at clustered acetylcholine receptors. Knock-in approaches can also introduce disease-relevant mutations to study their effects on cytoskeletal organization.
Overexpression
CRISPR overexpression models can test gain-of-function or dosage effects of cytoskeletal regulators. Overexpression of CAMSAP3-related pathways has been linked to cytoskeletal remodeling and osimertinib resistance in NSCLC cells. Overexpression studies can also model the effects of increased TRIM10beta on microtubule destabilization and proteotoxic stress.
How EDITGENE Supports spectrin-associated cytoskeleton Research
Researchers studying spectrin-associated cytoskeleton-related genes often need to determine whether a candidate gene is causally involved in membrane-cytoskeleton organization, junctional stability or disease-associated cytoskeletal remodeling. EDITGENE provides publication-grade CRISPR cell models and screening services to support these causal experiments, from knockout and point-mutation to knock-in, overexpression and library screening.
Contact EDITGENE today to design your custom CRISPR model for spectrin-associated cytoskeleton research.
Related Products
| Product name | Cat.No. | Species | Gene ID | |
|---|---|---|---|---|
| SPTBN1 Knockout HEK293 Cell Line | EDJ-KQ2469 | Human | 6711 | Details Get a Quote |
| ADD3 Knockout HEK293 Cell Line | EDJ-KQ2495 | Human | 120 | Details Get a Quote |
| RHBG Knockout HEK293 Cell Line | EDJ-KQ3906 | Human | 57127 | Details Get a Quote |
| ANK1 Knockout HEK293 Cell Line | EDJ-KQ3945 | Human | 286 | Details Get a Quote |
| ADD1 Knockout HEK293 Cell Line | EDJ-KQ4009 | Human | 118 | Details Get a Quote |
| ADD2 Knockout HEK293 Cell Line | EDJ-KQ4012 | Human | 119 | Details Get a Quote |
| EPB41 Knockout HEK293 Cell Line | EDJ-KQ4541 | Human | 2035 | Details Get a Quote |
| DMTN Knockout HEK293 Cell Line | EDJ-KQ4550 | Human | 2039 | Details Get a Quote |
| ANK3 Knockout HEK293 Cell Line | EDJ-KQ12041 | Human | 288 | Details Get a Quote |
| SPTA1 Knockout HEK293 Cell Line | EDJ-KQ15500 | Human | 6708 | Details Get a Quote |
| SPTB Knockout HEK293 Cell Line | EDJ-KQ15501 | Human | 6710 | Details Get a Quote |
| SPTBN1 Knockout A-549 Cell Line | EDJ-KQ23030 | Human | 6711 | Details Get a Quote |
| SPTBN1 Knockout HCT 116 Cell Line | EDJ-KQ23031 | Human | 6711 | Details Get a Quote |
| RHBG Knockout HCT 116 Cell Line | EDC07826 | Human | 57127 | Details Get a Quote |
| ANK1 Knockout A-549 Cell Line | EDJ-KQ26197 | Human | 286 | Details Get a Quote |
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Frequently Asked Questions About spectrin-associated cytoskeleton
What is GO:0014731 spectrin-associated cytoskeleton?
GO:0014731 is a cellular component ontology term describing the part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin, and associated with the plasma membrane.
What genes are involved in the spectrin-associated cytoskeleton?
Genes encoding spectrin isoforms, protein 4.1 and ankyrin are core components, and related cytoskeletal regulators include CAMSAP-family proteins and MARK2.
Where is the spectrin-associated cytoskeleton found?
It is associated with the plasma membrane and is a major structural element of the mammalian heart intercalated disc, and it can also localize to specialized membrane sites such as clustered acetylcholine receptors.
Why is the spectrin-associated cytoskeleton important in the heart?
It is a major structural element of the intercalated disc, where it contributes to cardiomyocyte membrane stability and junctional organization.
Is the spectrin cytoskeleton involved in infection?
Yes, the spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis.
How is the spectrin-associated cytoskeleton related to cancer?
Cytoskeletal remodeling via CAMSAP3 downregulation drives osimertinib resistance in NSCLC cells, linking cytoskeletal regulation to cancer drug resistance.
What research methods are used to study GO:0014731?
CRISPR knockout, point mutation, knock-in, overexpression, imaging, proteomics and functional migration or infection assays are commonly used.
Can CRISPR knockout be used to study spectrin-associated cytoskeleton genes?
Yes, CRISPR knockout can test whether spectrin, protein 4.1 or ankyrin genes are required for membrane domain organization and cytoskeletal assembly.
What diseases are linked to cytoskeletal regulators related to GO:0014731?
Cytoskeletal regulators have been linked to osimertinib resistance in NSCLC and to teratozoospermia with sperm head and flagella defects caused by CAMSAP1 mutations.
How does MARK2 regulate cytoskeletal organization?
MARK2 regulates Golgi apparatus reorientation by phosphorylation of CAMSAP2 in directional cell migration.
Conclusion
GO:0014731 (spectrin-associated cytoskeleton) defines a plasma-membrane-associated cytoskeletal subcompartment built from spectrin, protein 4.1 and ankyrin. Its best-characterized role is in the mammalian heart intercalated disc, but it also contributes to specialized membrane domains such as clustered acetylcholine receptors and is functionally important in bacterial pathogenesis. Related cytoskeletal regulators, including CAMSAP-family proteins and MARK2, connect this system to cell migration, cancer drug resistance and developmental defects. CRISPR-based knockout, point-mutation, knock-in and overexpression models provide the causal toolkit needed to dissect these functions in disease-relevant systems.
References
- 1. Baines AJ et al.. 2005. The spectrin-associated cytoskeleton in mammalian heart.. Front Biosci 10:3020-33 PMID: 15970557
- 2. Yang F et al.. 2025. Cytoskeletal remodeling via CAMSAP3 downregulation drives resistance to osimertinib in NSCLC cells.. Cell Death Dis 17(1):90 PMID: 41381443
- 3. Ruetz T et al.. 2011. The spectrin cytoskeleton is crucial for adherent and invasive bacterial pathogenesis.. PLoS One 6(5):e19940 PMID: 21603579
- 4. Bennett PM. 2018. Riding the waves of the intercalated disc of the heart.. Biophys Rev 10(4):955-959 PMID: 29987752
- 5. Xu P et al.. 2025. MARK2 regulates Golgi apparatus reorientation by phosphorylation of CAMSAP2 in directional cell migratio.. Elife 14 PMID: 40333320
- 6. Kim H et al.. 2025. TRIM10β upregulation promotes microtubule destabilization and triggers proteotoxic stress.. Cell Signal 135:112052 PMID: 40780618
- 7. Bloch RJ et al.. 1989. An unusual beta-spectrin associated with clustered acetylcholine receptors.. J Cell Biol 108(2):481-93 PMID: 2645300
- 8. Zheng R et al.. 2026. Bi-allelic mutations of CAMSAP1 result in teratozoospermia with sperm head and flagella defects in humans.. Hum Reprod 41(7):1062-1077 PMID: 42114970
